What is TB-500?
TB-500 is a synthetic version of a region of the naturally occurring protein Thymosin Beta-4, which plays a role in cell migration and blood vessel formation. It is commonly researched alongside BPC-157 for recovery-related outcomes.
Also known as: Thymosin Beta-4 fragment, TB4
How TB-500 is studied
TB-500 corresponds to an active region of Thymosin Beta-4, a naturally occurring protein that regulates actin, a protein central to cell structure and movement. By influencing cell migration and blood-vessel formation, TB-500 is studied for its potential role in wound healing, flexibility, and muscle and joint recovery.
Commonly researched for
Typically stacked with
Research status
Important considerations
Primarily studied in animal models. Human data on the TB-500 fragment specifically is limited.
TB-500 — frequently asked questions
Recovery-related outcomes: muscle and joint repair, flexibility, wound healing, and some cardiac-tissue studies. Much of the evidence is preclinical.
TB-500 is a synthetic fragment representing an active portion of the full Thymosin Beta-4 protein. Human data specifically on the TB-500 fragment is limited.
Its safety in humans is not established — most research is in animal models. It is not an approved therapy for these uses.